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Joey had two toy cars. One car had a spring which he wound up before the car would move the other car did not have a spring, but it needed a battery to work.
How are the two cars different
Answer:
the first answer i think
Explanation:
What does the allele indicate in this pair of homologous chromosome?
During childbirth, a hormone produced by the pituitary gland causes muscles of the mother's uterus (or womb) to contract. The more contractions there are, the more hormone is produced.
Which best explains why this occurs?
A. Positive feedback is used to build more contractions.
B. Positive feedback is used to lessen the effects of the contractions.
C. Negative feedback is used to build more contractions.
D. Negative feedback is used to lessen the effects of the contractions.
Answer:
Positive feedback is used to build more contractions.
Explanation:
Positive feedback mechanism in humans is also observed during childbirth which is induced by the pressing of the ovarian wall by the baby.
The pressing sensation is passed to the brain via different nerves, and in response, the brain stimulates the pituitary to produce oxytocin.
Oxytocin is responsible for the contractions of the uterine muscles which cause the movement of the fetus towards the cervix, further increasing the stimulus.
The positive feedback loop continues until the baby is born.
Lisa is standing on a beach on a breezy night. she realizes that the wind she feels is coming from the land and moving towards the sea. If she puts one foot in the water, keeping the other foot on the sand, which of the following will she most likely notice? *
a. Both the sand and the water are very cold
b.The sand is warmer than the water
c. Both the sand and the water are very warm.
d. The water is warmer than the sand
Do the North and South Poles have wet or dry climates? How do you know?
Which side has a higher concentration
blood
cell
They are the same concentration
HELPPPP
i need it done right away
Answer: i think its c
Explanation:
can i please have help on this.
1. write a sentence that describes how the food changes in the stomach.
2. write a sentence that describes how the food changes in the small intestine.
3. explain what happens to digested food in the small intestine
4. write a sentence that describes what happens to digested food in the cell.
what is the relationship between the amount of carbon dioxide in the atmosphere and global temperture
Explanation:
arbon dioxide is a colorless gas with a density about 53% higher than that of dry air. Carbon dioxide molecules consist of a carbon atom covalently double bonded to two oxygen atoms. It occurs naturally in Earth's atmosphere as a trace gas. The current concentration is about 0.04% by volume, having risen from pre-industrial levels of 280 ppm.
Answer:
Carbon dioxide is used by plants global temperature plants
Explanation:
From what you have learned about the inheritance of traits, would a lizard whose tail gets cut off pass that characteristic on to their offspring?
Group of answer choices
No
Yes
Answer:
No
Explanation:
Because if it was true, there would be many lizards walking around without tails, and we barely see any without tails. Also, their tails tend to regrow.
What are the phenotypic ratios of a white-eyed female is crossed with a red-eyed male
Answer:
We need to cross a white eyed female (XwXw) and red eyed male (XRY).
The cross can be shown as:
Xw Xw
XR XRXw (female, red eyed) XRXw (female, red eyed)
Y XwY (male, white eyed) XwY (male, white eyed)
Thus, in the offspring we will have the following phenotype:
Males: White eyed.
Females: Red eyed.
Explanation:
How do root cell membranes allow osmosis?
(this is science help please)
Answer:
Water moves across cell membranes by diffusion, in a process known as osmosis
Are dolphins afraid of whales?
Answer: i don't really think they are but whales can kill dolphins by sitting on them so yeah i guess their a little afraid
Explanation:
Answer:
It turns out the dolphins have nothing to fear from these particular killer whales, also known as orcas. ... "These dolphins seem to have absolute confidence around the fish eaters and would get eaten immediately if they were around the mammal eaters."
Explanation:
While gardening. omer accidently damages the stem of a plant in his garden what plant process has omer directly affect
A) Photosynthesis
B)reproduction
C)transpiration
D)transportation of water and food and nutrients
*i need this fast please*
Some male peacocks
used to have bright
and large tails while
others had dull,
smaller tails.
Female peacocks will
only mate with the
ones that have the
brightest and largest
tails.
Explain how this
would impact the
offspring of male
peacocks over time.
If you were going to convince your class to protect a local park habitat, what level of organisms would you focus on?
Answer:
idek
Explanation:
Brainliest; please help me the picture is shown
Answer:
The answer is location.
Explanation:
The answer is very logical and need no explaination.
I HOPE THIS WILL HELP YOU!!
when birds migrate in to or out of a defined population and mate with birds from another population the existing pool of genes may be altered migration can increase or decrease gene frequencies in population resulting in...
Answer: These genes will mix and the population will increase.
Explanation:
This is beside the point though, this will make both groups of birds join forces. resulting in overpopulation.
xylem and phloem are the two main transport systems in plants. which one of the following statements correctly describes the function?
A)Phyloem Carries water and nutrients from the leaves to the roots\
B) xylem carries water and nutrients from the roots to the leaves
C) xylem carries sugars from the leaves to the roots
D)phloem carries sugars from the roots to the leaves
*this is science*
The correct statement is ......
( B ) Xylem carries water and nutrients from the roots to the leaves
Which of the following BEST represents competition among organisms?
A. a walking stick insect resembling its environment
B. zebras staying together in groups to avoid predators
C. different types or species of trees trying to obtain sunlight and water
D. a cheetah hunting and killing a gazelle for food
Answer:
C. Diffrent types of species of trees trying to obtain sunlight and water.
Explanation:
The trees are COMPETING for survival, in this case, for food. Only the strongest survive.
How might alternative fuels provide a solution?
Communicate Due to global climate changes, more hurricanes are expected to hit the Gulf Coast. What might happen to gas and oil production?
Answer:
Explained below! :)
Explanation:
How might alternative fuels provide a solution?
It will reduce smog and pollution and lower global warming.
What might happen to gas and oil production?
The people buying it will lower, there will be less people buying oil because there is a healthier and more eco-friendly alterative.
which of the following is not a function of stems?
A) Transportation of nutrients
B) Support
C)transpiration
D)food storage
question a
is the answer
Explain what happens during cell respiration
PLEASE HELP I HAVE TO DO A FLIPGRID!!
Which would be an internal structure of this organism for a typical plant?
1. leaf
2. root
3. stem
4. ovary
Answer:
A Root
Explanation:
Plants have a root system, a stem or trunk, branches, leaves, and reproductive structures (sometimes flowers, sometimes cones or spores, and so on). Most plants are vascular, which means they have a system of tubules inside them that carry nutrients around the plant.
All ecosystems at the same latitude are placed in the same biome.
True or false
Pls give correct answer
ecosystems are at the same latitude are placed in the same biome is false
Answer:
False
Explanation:
if you put a desert biome in the same biome as a tundra that aint gonna work out even if they are at the same latitude
Fill in the blank:
Natural selection is the process of small genetic _________________ in organisms leading to the gradual development of a species.
Words-
adaptation variations predominance behavioral suppression advantage desirable
Natural selection is the process of small genetic variation in organisms leading to the gradual development of a species.
What is natural selection?"It is the process whereby organisms better adapted to their environment tend to survive and produce more offspring."It depends on the environment and genetic variation.Genetic variation is the changes in the genome.This will result in offspring with different characteristics that their parent species.As time passes this will lead to the development of new species.Hence, the correct answer is: variation.
To know more about natural selection here
https://brainly.com/question/9830102
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help, please will give brainiest
Answer:
Macroinvertebrates are organisms that are large (macro) enough to be seen with the naked eye and lack a backbone (invertebrate). They inhabit all types of running waters, from fastflowing mountain streams to slowmoving muddy rivers.
Answer:
I think it's C. it's sexual reproduction because the sperm and egg is comming from two different salamanders, not the same one. Since the egg and sperm are from different salamanders then there will be genetic variation in the offspring because the DNA from two different salamanders are present in the offspring.
What is the difference between the theory of continental drift and the theory of plate tectonics?
Your answer should include at least three complete sentences.
Be sure to check your grammar and spelling.