Which elements are the most abundant in living organisms? Select all that apply.carbon

zinc

hydrogen

nitrogen

oxygen

Answers

Answer 1

Answer:

The elements such as carbon, hydrogen, oxygen, and nitrogen are significantly found in living organisms in excess amounts.

What are the characteristics of living organisms?

The characteristics of living organisms may include breathing, reproducing, excretion, increase in size, homeostasis, etc.

In living organisms, hydrogen is one of the most abundant elements followed by carbon, oxygen, nitrogen, sulphur, phosphorus, etc.

While zinc, magnesium, manganese, cobalt, iodine, copper, iron, etc are trace elements that are found in very small amounts.

Elements such as chromium, cadmium, lead, arsenic, mercury, etc. are heavy metals that are toxic to human health.

Therefore, it is well described above.

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Answer 2

Answer:

Answer:

Carbon, sulfur, hydrogen, oxygen, and nitrogen

Explanation:

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Lakes and rivers constitute _______.a.87% of freshwater

b.a tiny fraction of Earth’s freshwater

c.a majority of Earth’s freshwater

d.a majority of water on earth

Answers

Perhaps surprisingly, lakes and rivers constitute a tiny proportion of the world's total freshwater, so answer (b) is correct. Most of the freshwater on our planet is in fact locked up in ice and glaciers, some 68%. The majority of the rest, 30%, is actually underground, in springs and other groundwater feeders. That leaves just 2% that makes up all the rivers, lakes, ponds and other visible freshwater reservoirs that we see in our day-to-day lives.

Answer:

Explanation:

On edge

Is a crab a vertebrate or invertebrate?

Answers

Invertebrate, b/c it doesn't have a spine of any kind

Answer:

Every crab is an invertebrate creature that belongs to the crustacean family. There are over 4500 species of crabs and most of them live in the coastal areas of salty, fresh or brackish water (mix of fresh and salty water).

Explanation:

1. The gametophytes of gymnosperms are found inside reproductive structures called a. flowers.
b. cones.
c.embryos.
d. ovules.
2. In gymnosperms, the female gametophyte develops inside the
a. seed.
b. pollen cone.
c. pollen grains.
d. ovules.
3, Which of the following gymnosperm reproductive structures is haploid?
a. pollen grains
b. seed cone
c. seed
d. cone scale

Answers

Q1. The answer is b. cones.
Reproductive structures of gymnosperms are cones while reproductive structures of angiosperms are flowers. The gametophytes are found in reproductive structures which are called cones in gymnosperms.

Q2. The answer is d. ovules.
The female gametophyte of gymnosperms develops inside the ovules borne on the surface of ovuliferous scale of an ovulate cone while the female gametophyte of angiosperms develops inside the ovules located inside the gynoecium of the flower.

Q3. The answer is a. pollen grains.
Nevermind if a gymnosperm or an angiosperm, pollen grains are always haploid structures so when they fuse with haploid female gamete, a diploid zygote is formed.

Lesson 12: Seed plants

1.Seed-bearing plants differ from all other plants in that

C.Their gametes do not require water for fertilization to occur.

2. IN seed plants, what is an important difference between gymnosperms and most angiosperms.

3. The gametophytes of gymnosperms are found inside reproductive structures called

B. Cones

4. In gymnosperms, the female gametophyte develops inside the

D. Ovules.

5. Which of the following gymnosperm reproductive structures is haploid?

A. Pollen grains

!100!% Correct Hope its help

Can you live without your large intestine? Why or why not?

Answers

no we cannot live without our large intestine because it is the only place where waste products gets deposited, it is also responsible for excretion .

No, we cannot live without our large intestine. The large intestine is concerned with the absorption of water and it is from where proper excretion occurs. If there is no large intestine, then we may have to suffer with excretory products ( faeces ) in our blood which will hamper our co-ordination.

A cell can use this type of bulk transport to bring something large inside the cell