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sdas [7]
3 years ago
10

How are ferns, gymnosperms, and angiosperms alike? They are all vascular plants. They depend on water for fertilization. They al

l produce seeds. Reproduction depends on birds, bees, and other animals.
Biology
1 answer:
castortr0y [4]3 years ago
3 0

Answer:

The correct answer is ''They are all vascular plants''.

Explanation:

Vascular plants or tracheophytes are those organisms of a more evolved plant nature, they are those that have leaves, stem and roots and that have a vascular system formed by conducting vessels. Ferns are pteridophytic vascular plants, they do not produce flowers or seeds and are mostly herbaceous. All those vascular plants that have seeds but do not have flowers are called gymnosperms. The seeds are not covered or protected by an ovary, so they appear visible on the leaves or other parts of the plant. Angiosperms are plants with flowers, whose seeds develop within the ovary, which grows and becomes fruit.

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An element has 2 valence electrons and 3 energy levels. It is located in<br> group
kodGreya [7K]

Answer: 3

Explanation:

All elements in group 3 have 3 levels of energy.

Na (sodium) has 3 valences the inner has 2 electrons, the middle has 8 electrons and the outer has 1 electron.

This will continue across the group 3 adding one more electron to the outer valence until Ar (argon).

Remember the Octet rule of 8..?

4 0
3 years ago
If a child has a phenotype of straight hair, (which is a recessive trait) what is the child's genotype? Explain
tankabanditka [31]

Answer:

hh

Explanation:

Because recessive traits are represented with lowercase letters

8 0
3 years ago
I WILL GIVE THE BRAINLIEST AND 20 PTS!
cluponka [151]

Answer: 5(x +1.5)^2

10(x +1)^2

1/4(x +2)^2

3(x +5/6)^2

Explanation: When your desired form is expanded, it becomes ...

 a(x +b)^2 = a(x^2 +2bx +b^2) = ax^2 +2abx +ab^2

This tells you the overall factor (a) is the leading coefficient of the given trinomial. Factoring that out, you can find b as the root of the remaining constant.

a) 5x^2 +15x +11.25 = 5(x^2 +3x +2.25) = 5(x +1.5)^2

b) 10x^2 +20x +10 = 10(x^2 +2x +1) = 10(x +1)^2

c) 1/4x^2 +x +1 = 1/4(x^2 +4x +4) = 1/4(x +2)^2

d) 3x^2 +5x +25/12 = 3(x^2 +5/3x +25/36) = 3(x +5/6)^2

6 0
3 years ago
What’s the differences between the three main classes of sponges.
Anon25 [30]

Answer: There are three classes. These classes include Calcerea, Desmospongia, and Hexactinellida. They are divided into these classes based mostly on the composition of their spicules and skeletal fibers. (spicules are rod-shaped cellular projections that make up the skeleton of sponges) hope this helps!

Explanation:

6 0
3 years ago
Why do living organisms need carbon?<br> hurry!
lora16 [44]

Answer:

Carbon is important because most living creatures on Earth are composed of carbon, according to The State University of New Jersey website. Living things need carbon to grow, live and reproduce. Carbon is vital in forming large, complex and diverse molecules that characterize living matter.

Explanation:

4 0
2 years ago
Read 2 more answers
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