can somebody please help me? :)

Elizabeth is a schoolteacher. She is drawing a marine food chain on the board. Which marine organisms should be at the base of the chain?

Which of the
following is the best
conclusion that can
be made from this
graph?
Answers are in pictures

please name at least FOUR properties of water

i will give you brainliest!

what would happen if snakes were removed from the food chain?​

Which of the following is necessary for a geothermal plant to function?
Your answer:
biomass
fossil fuels
heated rock
hydrogen
sunlight

Some human white blood cells help destroy pathogenic bacteria by *
(1) causing mutations in the bacteria
(2) engulfing and digesting the bacteria
(3) producing toxins that compete with bacterial toxins
O (4) inserting part of their DNA into the bacterial cells

A wildfire burns through a grassland in the dry Texas Hill Country. The grass on the knolls burns and turns into ash, and the ash forms a layer on the ground. With the first rain, seedlings begin to sprout. Which of the following is most likely to occur in the coming years?

A
The Hill Country will see a decrease in species diversity because the main plants in the area have burned away.

B
The Hill Country will see no change in species diversity because the number of new species will equal the number of old species.

C
The Hill Country will see a decrease then an increase in species diversity because all of the old species will be replaced by new species.

D
The Hill Country will see an increase in species diversity because the soil has been enriched by the ash.

How can we reduce the amount of waste by home?

Which of these energy sources is formed from decayed and compressed
plankton?
O A. Coal
O B. Geothermal
O C. Biomass
O D. Natural gas

In one or two sentences, explain how cats and dogs, both mammals, could be classified as distinct animals. What characteristics set them apart from one another?

pleaseeeeeeeeeee help

The maternal effect Drosophila mutation bicoid (bcd
-
) is recessive. A
female that is bcd
-
/bcd
+
is mated to a bcd
-
/bcd
- male. What is the outcome?
A) 50% of the eggs will hatch, and these will produce fertile adults
B) no eggs will hatch
C) all eggs hatch, but 50% of the resulting daughters produce eggs
that fail to hatch
D) it is impossible to get a bcd
-
/bcd
- male, so this mating can not
occur
E) 50% of eggs will hatch, but half the female offspring will be infertile

Hydra are a small thread like animal that lives in fresh water. The picture shows one type of
process of a hydra. Which best describes the process of this hydra? 0
(2 Points)

which describes the importance of seed dispersal​

When a male with genotype Bb makes a sperm cell, it could have the ____ allele
1. XY
2. b
3. B or b
4. B

Name some organs that the diaphragm pushes against during inspiration

The periodic table

a.) is arranged by atomic mass

b.) was developed by early alchemists

c.) is arranged by number of protons

d.) is divided into vertical periods and horizontal groups

Complete the passage to differentiate between longitudinal and transverse waves.

A longitudinal wave is a type of wave that transfers energy
to the direction of wave motion. A transverse wave, on the other hand, is a type of wave that transfers energy
to the direction of wave motion.

3) Write 3 sentences that explain how limiting factors can change the carrying capacity of
an ecosystem?

Every organism has a unique ecosystem in which it lives. This ecosystem is its natural habitat. This is where the basic needs of the organism to survive are met: food, water, shelter and a place to breed. All organisms need to adapt to their habitat to be able to survive. Animals and plants with adaptations that make them better suited for the environment will survive and reproduce better than those less suited for the environment. What adaptations are beneficial in the taiga or boreal ecosystem, marked B on the map? Select ALL that apply

The table shows the main food source of different organisms that make up a food chain.
Organism
Food Source
Grasshopper: Grass
Hawk: Snake
Snake: Mice
Mice: Grasshopper
Which set of trophic levels correctly describes the organisms?

She is puzzled that the clone does not have an effect, even though she knows, based on available mutants, that loss of the function of this gene causes worms to die as larvae. You look at the sequence of the DNA she used to make the feeding clone and discover that it corresponds to an intron in the gene. What would you say to the student to explain why her experiment did not succeed

Muscles are named in a variety of ways; the muscles on the sides of the head are named according to their
a. size.
b. location.
c. action.
d. location of insertion.

Which of these do not contain muscles? uterus blood vessels calf muscles eye pupils

someone help me and explain

Which of these materials would be most useful in terms of retaining residue evidence in an explosion?

A. Wall insulation

B. A bronze statue

C. A concrete wall

D. A steel barricade

Suppose that you have cancer cell line X was treated with drug Y to
increase the expression levels of protein Z which is a tumor
suppressor gene.

Explain How can you study protein Z in these cells?

Explain how can you  study protein Z components?​

If Bob and Mary were to have four offspring, what would be the
probability that all of the offspring would be blue?
Hints
a. 0.5 x 0.5 x 0.5 x 0.5 = 0.0625 or 6.25%
b. 50 x 50 x 50 x 50 = 6,250,000 or 62.5%
C. 0.5 +0.5 +0.5 +0.5 = 2.0 or 200%
d. It would be impossible for them to have four blue offspring in a row.

how proteins are made​

QUESTION 6
Which of the following is NOT an enzyme
O Amylase
Lipase
Oxidase
Alanine