In terms of the investigation about the type of earlobe free or attached), name the following 2.1
The dependent variable
(1)
2.2
The independent variable
(1)
Formulate a hypothesis for the frequency of tongue-rollers as compared to non-rollers in your
school
(3)
Construct a table to show the results obtained in this investigation
(4)
According to the results obtained, would you accept or reject the hypothesis formulated in
QUESTION 3?
(1)
State TWO ways in which you could make the results of this investigation more reliable
(2)
Using the same system of axes, draw a bar graph to represent the percentage of learners displaying
each phenotype for each of the three characteristics
(8
Use the symbols R (tongue-roller) and (nor-rolen) to represent the phenotypes and genotypes of
offspring resulting from a cross between tivo heterozygous individuals
(6)​

d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

hope it !

1. a host loses nutrients to a parasite

2. a parasite only benefits when the host is alive (cause if the host dies the parasite dies with it )

3. producers to consumers

4. the tapeworm is a parasite

5. they convert energy from the sun (photosynthesis)

6. sunflower-robin (i think im 80% sure)

7. producer

8. consumer

9. prey

10. fresh water snails ( cause the green algea is the producer and the snails are the primary consumers and the small fish consumer so is the big fish)

the corpus luteum secretes estrogens and progesterone. the latter hormone causes changes in the uterus that make it more suitable for implantation of the fertilized ovum and the nourishment of the embryo. if the egg is not fertilized, the corpus luteum becomes inactive after 10–14 days, and menstruation occurs.

i hope this : )