Choose the word that best completes each sentence.Invertebrates may have an _____ for protection and support.


Vertebrates have a backbone and an ____.

Answers

Answer 1
Answer:

The word that completed each sentence should be

1. exoskeleton

2. endoskeleton

What are exoskeleton and endoskeleton?

An exoskeleton refers to the skeleton that is external in nature at the same time it supports and protects the body of the animal. While on the other hand, the endoskeleton refers to the internal skeltion. So we can say that invertebrates should contain the exoskeleton with respect to protection and support. While the vertebrates should contain the backbone also the endoskeleton.

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Answer 2
Answer:

Answer:

1) exoskeleton  2) endoskeleton

Explanation:


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All of the following are ways that neutrophils can directly or indirectly kill cells except __________.

A solution that contains equal numbers of hydrogen and hydroxyl ions would be called acidic
basic
alkaline
neutral

Answers

a solution that contains equal numbes of hydrogen and hydroxil would be called : NeutralHydrogens component tend to be acidic while Hydroxyl Ion hase a base characteristic.If the amount is equal in a solution, then the PH of that solution will be +/- 7, which is considered a neutral solution

Answer:

The answer is D. neutral.

For most ecosystems, the ultimate source of energy is _____. a. plants
b. producers
c. the sun
d. water

Answers

Answer:

The correct answer would be c. the sun.

The sun is the ultimate source of energy in any ecosystem.

The solar energy is converted into chemical energy with the help of autotrophs or producers through the process of photosynthesis.

The small portion of this energy is transferred to the next trophic level and by end of 3-4 trophic levels, the entire energy is lost as heat or cellular respiration.

Final answer:

The sun is the ultimate source of energy in most ecosystems. This energy is transformed by producers like plants into a usable form through photosynthesis. Water and plants also have important roles in this process.

Explanation:

In ecosystems, the ultimate source of energy is typically the sun. The energy from the sun is initially harnessed by producers, or autotrophs, such as plants, through the process of photosynthesis. These organisms convert light energy into chemical energy that can be used by other organisms. Water and plants also play crucial roles in ecosystems. Water is necessary for photosynthesis, and plants are vital for converting the sun's energy into a form that other organisms can utilize.

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Gregor Mendel crossed homozygous tall plants (TT) with homozygous short plants (tt). All the resulting offspring were tall. From these results, what conclusion did Mendel draw?

Answers

We are given with 2 genes homozygous tall plants (TT) with homozygous short plants (tt). The ensuing offspring are tall, which implies the dominant attribute is tallness. this can be true since the chance of various height like all are short or some are tall and short could also be doable. answer is a

allele for tall plant height was dominant


Explanation:

Gregor Johann Mendel, called the "father of recent biology," was born in European country in 1822. His experiments showed that the inheritance of bound traits in pea plants follows explicit patterns, later turning into the inspiration of recent biology and resulting in the study of heredity.

The conclusion he drew was that the allele for tall plant height was dominant to that of short plant height.

What role does pyruvic acid play in cellular respiration?

Answers

Pyruvic acid or pyruvate is a product of broken-down glucose during glycolysis. It is an ingredient in cellular respiration processes including the Kreb's cycle where it is transformed into lactate. It is also used to supply and distribute oxygen to cells through the citric acid cycle.

1. Why were populations able to get so big? What happened that allowed this to happen?2. What do you think will happen if the populations of humans continued to increase

3. What could happen that could limit the population or cause it to decrease ( Stop growing )

Answers

Answer:

1. reproduction

2. we could run out of food as not enough is produced fast enough

3. lack of food, women and men who are infertile or diseases which can kill people

When populations share their environment and interact withpopulations of other living species, it is called

A) A biome
B) A community
C) An ecosystem
D) A niche

Answers

When populations share the environment and interact with the other populations of different living species present in the same are, it is called an ecological community. Thus, the correct option is B.

What is an ecological community?

An ecological community is defined as the group of species which are commonly found together in an area. Ecological communities may include animal or plant assemblages with the similar habitat requirements and contain species which may interact with each other or rely on the similar processes in their particular environment.

An example of ecological community is a forest community which comprises of all the trees, the plant community, birds, deer, squirrels, foxes, fungi, insects, and other local or seasonal species.

Therefore, the correct option is B.

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Answer:

A

Explanation:

its an ecosystem; reaction between living things and their environment