Answer:
Option B, It was made in stars that lived before the solar system formed.
Explanation:
Almost all the carbon that exists today with in the living organisms was produced in the stars. When these stars exploded during the big bang theory all the carbon within hem was introduced in the environment of earth some billions of years ago. Hence , though carbon introduced in earth’s environment was due to big bang, its origin is from the stars. Hence option B is the correct answer
Cyanobacteria is responsible for generation of oxygen on planet earth and thus option D is in correct.
Image 1.1 -
Stomata are little moth-like structures in leaves, that, when open, allow the exchange of gases between the plant and the exterior.
Answer:
B.
Image 1.2 -
Without the existance of stomata, the process of transpiration wouldn't be possible if there weren't structures thata allowed the exchange of gases.
Answer:
A.
Image 2 -
So, we can elminate plants because they can photosynthesise; bacteria because they are prokaryotes and can photosynthesise; archaea because they are prokaryotes; hat leaves us with animals and fungi because these cannot photosynthesise and are both eukaryotes.
But, we cannot skip information. It is also said that the organism found has a cell wall, and animals do not have cell walls.
Answer:
C.
Image 4 -
Option 1 = cilia
Option 2 = flagella
Option 3 = pseudopods
Option 4 = pili (they're a meant to attacht to surfaces only bacteria)
Image 5 -
Runner stems are those that grow horizontally, therefore the fourth image with the long horizontal stems.
Rhizome stems are underground stems that can form roots or shoots through their nodes. Therefore, the third image with white background (the one with 2 drawn plants).
Tuber stems are large underground (mostly) structures used as storages for the plant. Therefore, this corresponds to the first image (the one with the white background.
Bulb stems are short and "bulby" stems, whith thick, leaves. Therefore, the second image (the one with the grass background).
Hope it helped,
BioTeacher101
Answer:
The correct answer is B
Explanation:
Because Thats how it works.
Earth's atmosphere helps maintain a constant temperature.
Answer:
Brassica species are dicot which means that they have two cotyledons instead of one like monocots. Cotyledons supply food for the plants in the seed. As the plant matures, it flowers. Mustard plants have small yellow flowers in clusters.
