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9966 [12]
3 years ago
8

True or false? pollen grains are the female gamete in the plant.​

Biology
1 answer:
babymother [125]3 years ago
6 0

Answer:

True

Explanation:

Pollen consists of one or more vegetative cells and a reproductive cell. A pollen grain itself is not the male gamete. In angiosperms and certain gymnosperms, the vegetative cell forms the pollen tube that grows to meet the unfertilized ovules, and the reproductive cell is the source of the sperm.

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An _______________ is composed of two or more tissues types, whereas ____________ are microscopic structures in a cell.
Lorico [155]

Answer:

The correct answer is- Organ, organelles

Explanation:

Cells comes together and make tissue and different tissue organized to form an organ. So organs are made up of a group of two or more tissue type which perform specific function in an organism. For example, the heart pumps the blood, kidney which filters the blood.

Organelle are microscopic structures in the cell for example nucleus, Golgi, endoplasmic reticulum. Each organelle performs a specific function like organs. Eukaryotes have membrane-bound organelles and prokaryotes lack membrane-bound organelles. Therefore the correct answer is organs and organelle.

4 0
4 years ago
List the four spheres of the earth and describe three examples of processes that represent an exchange of
lesantik [10]

Answer:Four spheres of earth are:1)Lithosphere(land)  2)Hydrosphere(water) 3)Biosphere(living things) 4)Atmosphere(air).

Energy and matter flow through Earth's four spheres.Energy flows through the atmosphere and hydrosphere mostly by convection.The continuous cycling of matter and energy through earth's system makes life on earth possible .Others are driven by energy from the sun.

Explanation:

7 0
3 years ago
Which of these are examples of satire? check all that apply?
Mandarinka [93]
<span>1. a magazine article exaggerating the publics extreme reaction to a celebrity
2. a funny political cartoon exposing the flaws in a new government policy
3. an ironic short story that draws attention to how unmotivated people can be</span>
4 0
4 years ago
50% of the planets are made mainly of gas true or false
ella [17]

Answer: I think the answer is true

Explanation: If you think about it, the terrestial planets ( being  venus, earth, mars, and mercury) are made up very little gas which are carbon dioxide, nitrogen and oxygen, and the gas giants ( being jupiter, saturn, neptune, and uranus) have gases such as hydrogen and helium. Thus meaning, the terrestial planets could be a part of it and the gas giants are the most. So yes, the answer is true.

6 0
3 years ago
What is an evolutionary lineage?
Irina18 [472]

Answer:

An evolutionary lineage is a temporal series of organisms, populations, cells, or genes connected by a continuous line of descent from ancestor to descendant. Lineages are subsets of the evolutionary tree of life. Lineages are often determined by the techniques of molecular systematics.

4 0
3 years ago
Read 2 more answers
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