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gayaneshka [121]
3 years ago
7

Helppppppp meeee please ​

Biology
1 answer:
maks197457 [2]3 years ago
7 0

Answer:

I know that the nucleus is the big boss of the cell, and the chlord past is ONLY in plants

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Which biomes would be coldest
Andrei [34K]

Answer:

Explanation:

The tundra and the taiga. Taiga is found in North American and Eurasia regions. Tundra is found in native Arctic and and Antarctic circle.

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3 years ago
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Select the correct statement about double fertilization in the angiosperm life cycle. a. Double fertilization results from the f
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Answer:

Double fertilization produces a diploid sporophyte and a triploid endosperm. (Ans. C)

Explanation:

Angiosperm are plants which is known for flowering plant on the earth. The flower is reproductive parts of the angiosperm plant. They are including 4 basic parts of the flower: Carpel, Stamens, Sepals and Petals.

During angiosperm plant reproduction, 2 structure are formed which are known as the Endosperm and a Zygote. Later a Zygote will grow and form a embryo and the endosperm is known for food source of plant embryo. Endosperm and Zygote forming process is known as double fertilization and it is a unique process found in angiosperms.

Steps involved in double fertilization are:

1) The pollen tube processing to release 2 sperm cells into an unfertilized ovule.

2) When one sperm cell fuses with the eggs to the formation of zygote and another sperm fuses with the 2 polar nuclei to the formation of endosperm this process is known as double fertilization.

3) After the completion of double fertilization, a fruit and seed develop.

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3 years ago
In each drawing, there are lines between each atom and each molecule. What do you think the lines between atoms represent? The l
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Answer:

Atoms are the smallest units of matter that still retain the fundamental chemical properties of an element. Much of the study of chemistry, however, involves looking at what happens when atoms combine with other atoms to form compounds. A compound is a distinct group of atoms held together by chemical bonds. Just as the structure of the atom is held together by the electrostatic attraction between the positively charged nucleus and the negatively charged electrons surrounding it, the stability within chemical bonds is also due to electrostatic attractions. To illustrate further, consider the two major types of chemical bonds: covalent bonds and ionic bonds. In covalent bonds, two atoms share pairs of electrons, while in ionic bonds, electrons are fully transferred between two atoms so that ions are formed. Let’s consider both types of bonds in detail.

Explanation:

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3 years ago
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Flat discs inside chloroplast that are arranged in stacks are called?​
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Thylakoids

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Thylakoids are usually arranged in stacks (grana) and contain the photosynthetic pigment (chlorophyll). The grana are connected to other stacks by simple membranes (lamellae) within the stroma, the fluid proteinaceous portion containing the enzymes essential for the photosynthetic dark reaction, or Calvin cycle.

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A dna sample is electrophoresed on an agarose gel and stained with ethidium bromide. several dna fragments are observed and are
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Quizlet is a good site that can help 

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